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Molecular formula

C21H21NO5S2

27 compounds have this formula on CompoundList.

Molar mass
431.52g/mol
Monoisotopic mass
431.0861Da
Atoms
50
Elements
5
Rings plus double bonds
12

The formula C21H21NO5S2 describes a molecule made of 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 5 oxygen atoms and 2 sulfur atoms. It is written in Hill notation: carbon first, then hydrogen, then the other elements in alphabetical order. The formula tells you which atoms are present, not how they are connected, which is why several different chemicals can share it.

Elemental composition

  • C Carbon × 2158.45%
    12.011 × 21 = 252.231 g/mol
  • H Hydrogen × 214.91%
    1.008 × 21 = 21.168 g/mol
  • N Nitrogen × 13.25%
    14.007 × 1 = 14.007 g/mol
  • O Oxygen × 518.54%
    15.999 × 5 = 79.995 g/mol
  • S Sulfur × 214.86%
    32.06 × 2 = 64.120 g/mol
Look up another formula

Compounds with the formula C21H21NO5S2

Isomers we list, best known first. Open one to see its structure, properties, safety data and suppliers.

Showing 1 to 27 of 27 compounds

N-(1,1-Dioxidotetrahydrothiophen-3-yl)-6,8-dimethyl-4-oxo-N-(thiophen-2-ylmethyl)-4H-chromene-2-carboxamide chemical structure, C21H21NO5S2, CAS 874128-25-3
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-6,8-dimethyl-4-oxo-N-(thiophen-2-ylmethyl)-4H-chromene-2-carboxamide
CAS 874128-25-3C21H21NO5S2
2-((1-Hydroxy-4-(4-isopropylphenylsulfonamido)naphthalen-2-yl)thio)acetic acid chemical structure, C21H21NO5S2, CAS 518303-31-6
2-((1-Hydroxy-4-(4-isopropylphenylsulfonamido)naphthalen-2-yl)thio)acetic acid
CAS 518303-31-6C21H21NO5S2
2-[1-Hydroxy-4-[(2,4,5-trimethylphenyl)sulfonylamino]naphthalen-2-yl]sulfanylacetic acid chemical structure, C21H21NO5S2, CAS 518303-32-7
2-[1-Hydroxy-4-[(2,4,5-trimethylphenyl)sulfonylamino]naphthalen-2-yl]sulfanylacetic acid
CAS 518303-32-7C21H21NO5S2
Methyl 3-[(2-methoxy-5-methylphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 941935-57-5
Methyl 3-[(2-methoxy-5-methylphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate
CAS 941935-57-5C21H21NO5S2
Methyl 3-[(2-ethoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 941888-59-1
Methyl 3-[(2-ethoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate
CAS 941888-59-1C21H21NO5S2
Ethyl 3-[(2-ethoxyphenyl)sulfamoyl]-4-phenylthiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 1105237-38-4
Ethyl 3-[(2-ethoxyphenyl)sulfamoyl]-4-phenylthiophene-2-carboxylate
CAS 1105237-38-4C21H21NO5S2
Ethyl 3-[(4-methoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 946235-08-1
Ethyl 3-[(4-methoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate
CAS 946235-08-1C21H21NO5S2
3-(4-Ethoxyphenyl)-2-thioxo-5-(3,4,5-trimethoxybenzylidene)-1,3-thiazolidin-4-one chemical structure, C21H21NO5S2, CAS 306323-42-2
3-(4-Ethoxyphenyl)-2-thioxo-5-(3,4,5-trimethoxybenzylidene)-1,3-thiazolidin-4-one
CAS 306323-42-2C21H21NO5S2
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-6-ethyl-4-oxo-N-(thiophen-2-ylmethyl)-4H-chromene-2-carboxamide chemical structure, C21H21NO5S2, CAS 874355-60-9
N-(1,1-Dioxidotetrahydrothiophen-3-yl)-6-ethyl-4-oxo-N-(thiophen-2-ylmethyl)-4H-chromene-2-carboxamide
CAS 874355-60-9C21H21NO5S2
(5E)-3-(2-Ethoxyphenyl)-2-sulfanylidene-5-[(3,4,5-trimethoxyphenyl)methylidene]-1,3-thiazolidin-4-one chemical structure, C21H21NO5S2, CAS 638139-91-0
(5E)-3-(2-Ethoxyphenyl)-2-sulfanylidene-5-[(3,4,5-trimethoxyphenyl)methylidene]-1,3-thiazolidin-4-one
CAS 638139-91-0C21H21NO5S2
N-[2-(4-Methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]-2-phenoxyacetamide chemical structure, C21H21NO5S2, CAS 946297-47-8
N-[2-(4-Methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]-2-phenoxyacetamide
CAS 946297-47-8C21H21NO5S2
2-Methoxy-N-[2-(4-methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]benzamide chemical structure, C21H21NO5S2, CAS 946285-38-7
2-Methoxy-N-[2-(4-methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]benzamide
CAS 946285-38-7C21H21NO5S2
4-Methoxy-N-[2-(4-methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]benzamide chemical structure, C21H21NO5S2, CAS 946242-20-2
4-Methoxy-N-[2-(4-methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]benzamide
CAS 946242-20-2C21H21NO5S2
3-Methoxy-N-[2-(4-methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]benzamide chemical structure, C21H21NO5S2, CAS 946348-41-0
3-Methoxy-N-[2-(4-methoxybenzenesulfonyl)-2-(thiophen-2-yl)ethyl]benzamide
CAS 946348-41-0C21H21NO5S2
Methyl 3-(4-(benzylsulfonyl)butanamido)benzo[b]thiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 923457-47-0
Methyl 3-(4-(benzylsulfonyl)butanamido)benzo[b]thiophene-2-carboxylate
CAS 923457-47-0C21H21NO5S2
N-(4-Methylphenyl)sulfonyl-N-(2-oxo-1,3-benzoxathiol-5-yl)cyclohexanecarboxamide chemical structure, C21H21NO5S2, CAS 670268-11-8
N-(4-Methylphenyl)sulfonyl-N-(2-oxo-1,3-benzoxathiol-5-yl)cyclohexanecarboxamide
CAS 670268-11-8C21H21NO5S2
Methyl 3-[(4-ethoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 941935-59-7
Methyl 3-[(4-ethoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate
CAS 941935-59-7C21H21NO5S2
Ethyl 2-(4-(phenylsulfonyl)butanamido)benzo[b]thiophene-3-carboxylate chemical structure, C21H21NO5S2, CAS 922909-39-5
Ethyl 2-(4-(phenylsulfonyl)butanamido)benzo[b]thiophene-3-carboxylate
CAS 922909-39-5C21H21NO5S2
Ethyl 3-[(3-methoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 946235-12-7
Ethyl 3-[(3-methoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate
CAS 946235-12-7C21H21NO5S2
Ethyl 3-[(2-methoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate chemical structure, C21H21NO5S2, CAS 946322-85-6
Ethyl 3-[(2-methoxyphenyl)sulfamoyl]-4-(4-methylphenyl)thiophene-2-carboxylate
CAS 946322-85-6C21H21NO5S2
4,6-Dimethyl-3-[(4-methylphenyl)sulfonyl]-2-pyridinyl 4-methylbenzenesulfonate chemical structure, C21H21NO5S2, CAS 478066-57-8
4,6-Dimethyl-3-[(4-methylphenyl)sulfonyl]-2-pyridinyl 4-methylbenzenesulfonate
CAS 478066-57-8C21H21NO5S2
3,4-Dimethoxy-N-(2-(phenylsulfonyl)-2-(thiophen-2-yl)ethyl)benzamide chemical structure, C21H21NO5S2, CAS 896337-84-1
3,4-Dimethoxy-N-(2-(phenylsulfonyl)-2-(thiophen-2-yl)ethyl)benzamide
CAS 896337-84-1C21H21NO5S2
6-(((4-Methylthiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 2-(4-isopropylphenoxy)acetate chemical structure, C21H21NO5S2, CAS 896305-97-8
6-(((4-Methylthiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 2-(4-isopropylphenoxy)acetate
CAS 896305-97-8C21H21NO5S2
6-(((4-Methylthiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 4-butoxybenzoate chemical structure, C21H21NO5S2, CAS 896302-90-2
6-(((4-Methylthiazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 4-butoxybenzoate
CAS 896302-90-2C21H21NO5S2

Frequently asked questions

What is the molar mass of C21H21NO5S2?

The molar mass of C21H21NO5S2 is 431.52 g/mol, calculated from standard atomic weights for 21 carbon atoms, 21 hydrogen atoms, 1 nitrogen atom, 5 oxygen atoms and 2 sulfur atoms. The monoisotopic mass is 431.0861 Da.

How many compounds have the formula C21H21NO5S2?

CompoundList lists 27 compounds with the molecular formula C21H21NO5S2, including N-(1,1-Dioxidotetrahydrothiophen-3-yl)-6,8-dimethyl-4-oxo-N-(thiophen-2-ylmethyl)-4H-chromene-2-carboxamide, 2-((1-Hydroxy-4-(4-isopropylphenylsulfonamido)naphthalen-2-yl)thio)acetic acid, 2-[1-Hydroxy-4-[(2,4,5-trimethylphenyl)sulfonylamino]naphthalen-2-yl]sulfanylacetic acid. Compounds that share a formula are isomers. They contain the same atoms arranged differently, so their properties, uses and prices can be very different.

What is the degree of unsaturation of C21H21NO5S2?

C21H21NO5S2 has a degree of unsaturation of 12. That is the total number of rings and pi bonds (a double bond counts as one, a triple bond as two) in any structure with this formula.